Pile fabric and method of making the same.



J. KREHBIEL.

FILE FABRIC AND METHOD OF MAKING THE SAME.

APPLICATION FILED IflAYIG, I914.

Patented Aug. 24, 1915.

2 SHEETS-SHEET I.

J. KREHBIEL. PILE FABRIC AND METHOD OF MAKING THE SAME.

APPLICATION FILED MAY 16, 1914.

1359,9470 Patented Aug. 24,1915.

2 SHEETSSHEET 2.

f a Q a ma 0 a a Q a C-- I 7 (0 a v f k a 0 0 0 ea, 0 Q o 7 wi tmwwoz JOHN KBEHBTEL, 0F BBIDGEPORT, CONNECTICUT, ASSIGNOB TO THE SALTS TEXTILE MANUFACTURING COMPANY, OF BRIDG-EIORT, CONNECTICUT, A CORPORATION OE CONNECTICUT.

Specification of Letters Patent.

Patented Au 24, 1915.

Application filed May 16, 1914. Serial No. 838,901.

To all whom it may concern Be? known that 1, JOHN KREHBIEL, a, subject of the Emperor of Germany, residing at Bridgeport, county of Fairfield, and State of Connecticut, have invented a certain new and useful Pile Fabric and Method of Making the Same, of which the following is a specification.

My invention relates to a pile fabric and to the method of making the same, the object of the invention being to make a fabric having the pile end in long and short lengths.

The invention will be understood by reference to the accompanying drawings in which Figure 1' is a diagrammatic representation of a portion of a loom to show the method of making the fabric, Figs. 2, 3, e and 5 conventional views to illustrate the varying number of picks in one of the pieces of goods; and Fig. 6 a view of the pile end after it is severed.

Heretofore, so far as known to me, the loom has been operated in weaving a double pile fabric to make the same number of weft picks in the two pieces of goods, so that the finished pieces are both pile fabrics with pile ends of substantially the same length. In so doing the pile warps loop the weft threads in the lower piece and then pass up and loop the same number of weft threads in the upper piece. As the fabric is advanced a knife severs all of the pile warps a substantially equal distance between the two pieces.

In carrying out the present invention the head motion is so operated as to make more picks in one piece than in the other, the one having the less number of picks making a fabric loose enough to permit one part of the cut pile end to pull out from that piece, leaving it as a plain woven fabric, while the other piece will be a pile fabric with long and short piles projecting therefrom.

Referring to the drawings the numeral 1 designates the lay, 2 the shuttle, 3 the reed, and 4 the heddle frames of a double pile fabric loom. The back warps 5 are led from the beam 6 and threaded through the heddles in the usual way for a double pile fabric, the back warp harness being shifted for every pick. The pile warps 7 are led from a beam over guide rolls 8 and easing rods, and then through the harness as usual. To produce my new fabric the head motlon is so adjusted and operated that more weft picks will be made in one piece than in the other piece of goods, the one having the less number of picks being so loosely woven as to permit one part of the pile end, after it is severed, to be pulled out therefrom. Thus in Figs. 1 and 2 three weft picks are made in the lower piece, then the harness shifted to make one weft pick in the upper piece, then shifted again to make three in the lower piece and so on. That is, the pile warp 7 is made to loop three picks in the lower piece and one pick in the upper piece, the pile end extending from a to a in Fig. 2. As the two pieces are thus woven, as indi cated at 9 in Fig. 1, they are advanced to the knife 10 which is operated as usual and which, in one travel, severs the pile end at the point 5 so as to give a projecting end 0 from the lower piece of goods 12. As there is but one weft pick in the upper piece of goods 11 to three in the lower, the upper piece will be loosely woven relatively to the lower, and when the pile ends are severed the portions cl between Z) and a will be loosely held by the upper piece. On the return travel of the knife, the ends at being loose offer no resistance to the knife and will not be cut and many of them will be pulled out from the upper piece as the knife passes over them. As the two severed pieces of goods 11 and 12 are advanced over the usual pin rollers 13 and 14 the ends d not cut by the knife will be pulled out from the upper piece as the lower piece is wound on the roller 14. The upper piece 11 will, there fore, be left as a plain loosely woven piece of goods which may be used for any purpose for which it is adapted, and the lower piece, or pile fabric, will have long and short pile ends projecting therefrom as indicated in Figs. 1 and 7.

The knife may be set so as to sever the pile end at the center, or above or below the center, according to the relative lengths of the parts 0 and d desired. Also the knife actuating mechanism may be adjusted to throw it on every pick or on alternate picks.

The piece of goods with the less number of weft picks may be either the upper or lower, and in Fig. 3 I have shown the same shed formations as in Fig. 2 except that in the former the three weft picks are in the upper instead of in the lower piece.

I do not confine myself to three picks in one of the sheds as there may be three, five, seven or more, the greater the number in one piece the farther apart will be the picks v and the looser the pile will be held in the other piece. In practice there is no necessity of making more than one pick in one of the pieces as the only purpose is to hold the pile warp until it is severed by the knife, and there should not be sufficient picks in the piece from which the pile is pulled to bind or hold the pile. In Figs. 2 and 3 there may be sixty picks to the inch in one piece and twenty in the other. In Figs. A and 5 I have shown five picks in one shed to one in the other, or say sixty picks to the inch in one piece to twelve in the other. The part (Z of the severed pile end will be more loosely held in Figs. 4 and 5 than it will be in Figs. 2 and 3. \Vhatever the number of picks per inch the object of my invention will be attained by weaving one of the pieces of goods in such manner as to permit the parts d of the severed pile ends to be pulled out from the piece either by the knife as it makes one of its travels after having severed the pile end, or pulled out as the two pieces of goods are separated and wound upon their respective pin rolls.

The above described fabric may be made upon any double pile fabric loom whether a plain loom or jacquard.

What I claim and desire to secure by Letters Patent of the United States is 1. A pile fabric having unequal pile warp ends projecting therefrom, said ends being formed by severing the pile warps during the weaving.

2. A pile fabric having each loop of the the weaving so as to permit one part of the pile warp ends to be pulled from one of the woven backs.

4h. The method of making a pile fabric consisting in weaving a double pile fabric having the pile warp loosely held in one of the pieces, and severing the pile end so as to permit one part of it to be withdrawn from the loosely woven piece and to be held by the other piece.

5. The method of making a pile fabric consisting in weaving a double pile fabric with more picks in one piece of goods than in the other, and severing the pile end so as to permit one part of it to be withdrawn from the piece having the less number of weft picks.

6. The method of making a pile fabric consisting in weaving a double pile fabric one of the pieces of which has more weft picks than the other piece, the one with the less number of picks being woven loosely enough to permit one part of the pile end to be pulled therefrom when cut.

7. The method of making a pilefabric consisting in weaving a double pile fabric and then cutting the pile end nearer one piece than the other so as to permitone part of said end to be pulled from one ofthe pieces, both parts of the pile end being held by one piece and one part longer than the other.

In testimony whereof I have hereunto signed my name in the presence of two subscribing witnesses.

JOHN KREHBIEL.

Witnesses:

ARTHUR E. PITT, CLARENCE L. PownLL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, I). G.

It is hereby certified that in Letters Patent No. 1,150,947, granted August 24, 1915, upon the application of John Krehbiel, of Bridgeport, Connecticut, for an improvement in "Pile Fabric and Methods of Making the Same, an error appears in the printed specification requiring correction as follows: Page 1, line 89, for the Word out read pulled out; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 28th day of September, A. D., 1915.

[SEAL] I J. T. NEWTON,

Acting Commissioner of Patents. 

